| /* ==================================================================== |
| Licensed to the Apache Software Foundation (ASF) under one or more |
| contributor license agreements. See the NOTICE file distributed with |
| this work for additional information regarding copyright ownership. |
| The ASF licenses this file to You under the Apache License, Version 2.0 |
| (the "License"); you may not use this file except in compliance with |
| the License. You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| ==================================================================== */ |
| |
| package org.apache.poi.sl.draw; |
| |
| import java.awt.Graphics2D; |
| import java.awt.geom.AffineTransform; |
| import java.awt.geom.Rectangle2D; |
| |
| import org.apache.poi.sl.usermodel.*; |
| |
| |
| public class DrawGroupShape extends DrawShape { |
| |
| public DrawGroupShape(GroupShape<?,?> shape) { |
| super(shape); |
| } |
| |
| public void draw(Graphics2D graphics) { |
| |
| // the coordinate system of this group of shape |
| Rectangle2D interior = getShape().getInteriorAnchor(); |
| // anchor of this group relative to the parent shape |
| Rectangle2D exterior = getShape().getAnchor(); |
| |
| AffineTransform tx = (AffineTransform)graphics.getRenderingHint(Drawable.GROUP_TRANSFORM); |
| AffineTransform tx0 = new AffineTransform(tx); |
| |
| double scaleX = interior.getWidth() == 0. ? 1.0 : exterior.getWidth() / interior.getWidth(); |
| double scaleY = interior.getHeight() == 0. ? 1.0 : exterior.getHeight() / interior.getHeight(); |
| |
| tx.translate(exterior.getX(), exterior.getY()); |
| tx.scale(scaleX, scaleY); |
| tx.translate(-interior.getX(), -interior.getY()); |
| |
| DrawFactory drawFact = DrawFactory.getInstance(graphics); |
| AffineTransform at2 = graphics.getTransform(); |
| |
| for (Shape<?,?> child : getShape()) { |
| // remember the initial transform and restore it after we are done with the drawing |
| AffineTransform at = graphics.getTransform(); |
| graphics.setRenderingHint(Drawable.GSAVE, true); |
| |
| Drawable draw = drawFact.getDrawable(child); |
| draw.applyTransform(graphics); |
| draw.draw(graphics); |
| |
| // restore the coordinate system |
| graphics.setTransform(at); |
| graphics.setRenderingHint(Drawable.GRESTORE, true); |
| } |
| |
| graphics.setTransform(at2); |
| graphics.setRenderingHint(Drawable.GROUP_TRANSFORM, tx0); |
| } |
| |
| @Override |
| protected GroupShape<?,?> getShape() { |
| return (GroupShape<?,?>)shape; |
| } |
| } |